 | |
| Developer(s) | Nils Adermann, Jordi Boggiano |
|---|---|
| Initial release | March 1, 2012[1] |
| Stable release | 2.7.2[2] 
/ 11 March 2024 |
| Repository | |
| Written in | PHP |
| Operating system | Cross-platform |
| Type | Package manager |
| License | MIT License |
| Website | getcomposer |
Composer is an application-level dependency manager for the PHP programming language that provides a standard format for managing dependencies of PHP software and required libraries. It was developed by Nils Adermann and Jordi Boggiano, who continue to manage the project. They began development in April 2011 and first released it on March 1, 2012.[1] Composer is strongly inspired by Node.js's "npm" and Ruby's "bundler".[3] The project's dependency solving algorithm started out as a PHP-based port of openSUSE's libzypp SAT solver.[4]
Composer runs from the command line and installs dependencies (e.g. libraries) for an application. It also allows users to install PHP applications that are available on "Packagist"[5] which is its main repository containing available packages. It also provides autoload capabilities for libraries that specify autoload information to ease usage of third-party code.
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Transcription
Syntax
Commands
Composer offers several parameters including :[6]
require: add the library in parameter to the file composer.json, and install it.install: install all libraries from composer.json. It's the command to use to download all PHP repository dependencies.update: update all libraries from composer.json, according to the allowed versions mentioned into it.remove: uninstall a library and remove it from composer.json.
Libraries definition
Example of composer.json generated by the following command:
composer require monolog/monolog
{
"require": {
"monolog/monolog": "1.2.*"
}
}
Versions
The different authorized versions of the libraries are defined by:[7]
| Symbol | Role (placed before a version number) | Example |
|---|---|---|
| >= | allows to extend the number. Moreover, we can use: >, <, <=. | "php": ">=5.5.9" includes PHP 7.
|
| != | excludes a version. | |
| - | defines a range of versions. | |
| * | extends to all subversions. | "symfony/symfony": "3.1.*" includes the 3.1.1.
|
| ~ | extends to the next versions of the same level. | "doctrine/orm": "~2.5" also concerns the 2.6, but neither the 2.4 nor the 3.0.
|
| ^ | same as tilde, only if there is a backward compatibility. |
Supported frameworks
- Symfony version 2 and later
- Laravel version 4 and later
- CodeIgniter version 3.0 and later
- CakePHP version 3.0 and later
- FuelPHP version 2.0 and later
- Drupal version 8 and later
- TYPO3 version 6.2 and later
- Neos Flow version 2.0 and later
- SilverStripe version 3.0 later
- Magento version 2.0 later
- OpenMage version 20.0.0 and later
- Yii version 1.1 and later
- Laminas
- Silex (web framework)
- Lumen (web framework)
- Adianti Framework version 1 and later
See also
References
- ^ a b Software release, github.com, Retrieved April 24, 2016.
- ^ "Release 2.7.2". 11 March 2024. Retrieved 22 March 2024.
- ^ Getting Started/Dependency management, getcomposer.org, Retrieved November 28, 2013.
- ^ "composer/composer". Jun 23, 2020. Retrieved Jun 24, 2020 – via GitHub.
- ^ See packagist.org
- ^ "Command-line interface / Commands". getcomposer.org.
- ^ "Versions and constraints - Composer". getcomposer.org.
External links
- Official website
- Composer on GitHub
- Composer documentation
- Composer Tutorial
- Packagist - the main Composer repository
- Composer at Open Hub
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This page was last edited on 20 March 2024, at 23:52